Upsilon Cancri
The Bayer designation Upsilon Cancri (υ Cnc / υ Cancri) is shared by two stars, in the constellation Cancer:
They are separated by 0.34° on the sky.
In Johann Bode’s Uranographia, the designation Rho Cancri is applied to five different stars:
Bode’s superscripted letters are now rarely used though, so the designations have been reverted to the original 2 stars.